I just installed fresh air exhaust on my X-30. Must say its an overly impressive tool to reduce motor noise by 50%-75%. The reason why I installed it was for the little ones exposure to CO2, but the reduction in motor noise is absolutely awesome.

Here's a picture of it installed

Here's a video that I shot last weekend...besides the occasional breeze, you can barely hear the motor

I just installed fresh air exhaust on my X-30. Must say its an overly impressive tool to reduce motor noise by 50%-75%. The reason why I installed it was for the little ones exposure to CO2, but the reduction in motor noise is absolutely awesome.

...besides the occasional breeze, you can barely hear the motor

What engines do you guys have that you'd like quieter? Do you have cat exhausts? I'd love our X-15 to have a bit of exhaust noise - just a bit. I seem to hear engine noise and some intake noise, but no real exhaust noise.

Im working on leds now. My only issue with that is I dont run after dark very much.
extra 12 volt plugs sounds like a good idea. Right now I dont see where/how I would use them. My GF made me buy a 12v blanket, the big sissy